RIM Engineering is currently investigating this bug.
BlackBerry email display problems when RSA Software Token 3.0.2 is installed.
RIM is tracking this internally as MKS233721
Fact RSA SecurID Software Token 3.0.2 for BlackBerry
Fact BlackBerry Tour
Symptom Problem occurs on at least these versions and later (as of August, 2009):
Curve 8900: 18.104.22.168
Bold 9000: 22.214.171.124
Storm 9530: 126.96.36.199, 188.8.131.52
Tour 9630: 184.108.40.206 (current version shipping with the Tour)
Symptom Email format / display becomes corrupted. Body of text can be missing or in an attachment that cannot be opened. Problem appears to be specific to email associated with BES (and not occur with a BIS email source).
Cause As of August 17th, 2009 RIM has acknowledged this is a Blackberry OS issue and is investicating a fix. RSA tracking under bugzilla 126836.
This issue at RIM can be tracked using this link https://www.blackberry.com/jira/browse/JAVAAPI-248
RIM is tracking this internally as MKS233721.
I would appreciate if someone can contact RIM for a device software update and post that information here. It would be helpful to all of us. I have noticed there is a device software update for Verizon phones on thier web site.