the way i solved that same issue i had with my test site was to delete everything including database/DB-user/ips4-directory and then i re-created a clean database and DB user but i gave both a different name, then i uploaded the beta2 as zip through cpanel, that worked for me.
:-( if i read correctly according to News and Information i think the release date has been pushed out little bit: http://community.invisionpower.com/forum-1/announcement-30-what-new-in-ips-community-suite-40/
Great project, i like it, and will buy it once it is released!!!
One feature i would like to see on future versions is a way to upload audio/video files to group section. This is a must for my site where i have DJs streaming Radio music and live events that i record and later upload to the site for people to hear/view later.
I'm having similar problem when using IE8.
1. When i click on IPSMarketplace tab the IE8 window moves to the upper left corner of the screen and rezises to very small window (see pic).
2. Once i'm in market place page, there is too much withe space in the "What's new" area between articles.