I've got FMP 10 adv running on a Windows XP SP3 system with no trouble. I can see you're using windows but you don't say which version. Any tech folks at filemaker who respond to this post will ask you for that information.
Have you tried reinstalling the FMP 10 adv? (You may have to uninstall first).
"Also, I downloaded Filemaker Pro 10 Advanced v2 and tried to load it thinking that might have a fix for this issue."
Apparently, this update fixes just one bug. I don't think it's going to help you with this issue.
I've gotten pretty good help when I called Tech Support with install issues. You might want to try that approach instead of waiting for a response here.
Thank you for your post.
The reply from PhilModJunk is correct (Thank you!). The operating system is important.
On my Dell Dimension running Windows XP (SP3), I do not encounter the same problem.
Since this used to work, let's assume FileMaker Pro became corrupt. Therefore, uninstall FileMaker Pro 10, reinstall FileMaker Pro 10 and try again. If everything seems to now work properly, then try running the updater for FileMaker Pro 10v2. If you still get strange files, then perhaps the download was corrupt. Download the updater again, and then launch the updater.
If problems still exist after the reinstallation of FileMaker Pro 10, then perhaps your system has become affected. Reinstall your OS.
Please keep me informed of your progress.