Server error when click on 'send by e-mail' button in version 7.0

When running version 7.0 on windows 8 machine I get a server error when clicking on the 'send by e-mail' button. This happens in all modules.
The error message is a follows:
OpenERP Server Error
Client Traceback (most recent call last):
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\web\http.py", line 192, in dispatch
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\web\controllers\main.py", line 1225, in call_button
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\web\controllers\main.py", line 1159, in call_common
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\web\controllers\main.py", line 1183, in _call_kw
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\web\session.py", line 42, in proxy
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\web\session.py", line 30, in proxy_method
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\web\session.py", line 105, in send

Server Traceback (most recent call last):
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\web\session.py", line 91, in send
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\netsvc.py", line 361, in dispatch_rpc
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\service\web_services.py", line 596, in dispatch
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\osv\osv.py", line 167, in execute_kw
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\osv\osv.py", line 121, in wrapper
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\osv\osv.py", line 176, in execute
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\osv\osv.py", line 164, in execute_cr
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\account\edi\invoice.py", line 79, in action_invoice_sent
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\edi\models\edi.py", line 185, in export_edi
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\edi\models\edi.py", line 120, in generate_edi
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\account\edi\invoice.py", line 92, in edi_export
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\openerp\addons\edi\models\edi.py", line 510, in _edi_generate_report_attachment
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\report_sxw.py", line 442, in create
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\report_sxw.py", line 476, in create_source_pdf
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\report_sxw.py", line 533, in create_single_pdf
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\interface.py", line 192, in create_pdf
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\render.py", line 59, in render
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml.py", line 41, in _render
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml2pdf\trml2pdf.py", line 985, in parseNode
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml2pdf\trml2pdf.py", line 310, in render
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml2pdf\trml2pdf.py", line 969, in render
  File "reportlab\platypus\doctemplate.pyo", line 877, in build
  File "reportlab\platypus\doctemplate.pyo", line 510, in clean_hanging
  File "reportlab\platypus\doctemplate.pyo", line 757, in handle_flowable
  File "reportlab\platypus\doctemplate.pyo", line 140, in apply
  File "reportlab\platypus\doctemplate.pyo", line 535, in handle_pageBegin
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml2pdf\trml2pdf.py", line 589, in render
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml2pdf\trml2pdf.py", line 572, in render
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml2pdf\trml2pdf.py", line 416, in _place
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml2pdf\trml2pdf.py", line 873, in render
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml2pdf\trml2pdf.py", line 866, in process_story
  File "C:\Program Files (x86)\OpenERP 6.2dev-20121116-000101\Server\server\.\openerp\report\render\rml2pdf\trml2pdf.py", line 742, in _flowable
  File "reportlab\platypus\paragraph.pyo", line 827, in __init__
  File "reportlab\platypus\paragraph.pyo", line 842, in _setup
  File "reportlab\platypus\paraparser.pyo", line 1056, in parse
  File "reportlab\lib\xmllib.pyo", line 562, in finish_starttag
  File "reportlab\lib\xmllib.pyo", line 596, in handle_starttag
  File "reportlab\platypus\paraparser.pyo", line 796, in start_para
  File "reportlab\platypus\paraparser.pyo", line 790, in _initial_frag
  File "reportlab\lib\fonts.pyo", line 75, in ps2tt
ValueError: Can't map determine family/bold/italic for dejavu sans
   handle_pageBegin args=()