This post is a little old but I decided to add some input to it since it might help some else trying to run Sketchup7 on Karmic Koala 9.10.
It is always better to download the last version of wine from their site since the Ubuntu repository is a little outdated.
The version wine version that is working for me is 1.1.43.
The fix is real simple:
Fix: Open your wine menu and open the C drive (/home/user/.Wine) Open the Windows Folder Find Regedit.exe and run it with Wine Find: HKEY_CURRENT_USER\Software\Google\SketchUp6\GLConf ig\Display There are three entries - Look at the bottom one, name 'HW_OK" Double click it and change the data from a 0 to a 1 Run Sketchup7
that should do it. I read some postings mentioning problems with black screens, which are related to compiz; in that case just disable compiz.
I hope this can help someone. I've been trying get Sketchup running for the longest time, I finally got it working with this little trick.