Even though i went to C:\Users\<USER>\AppData\Local\romcenter\RomCenter.exe_Url_<BLAH>\and deleted all subfolders, romcenter somehow remembers that i had some dats open (i have opened and closed them several times since the first RC4 betas).
I close them, close romcenter and next time i reopen it, there they are again. Where does romcenter store the last opened files? Perhaps i can send you that file so you can try to reproduce the problem.
After some search, it appears i have reported the same issue as #84 and #17, with different wording. You have done some work on it and contrary to what we both believed, it has not been resolved. Hopefully my last question (10 minutes ago) will lead to the proper direction to finally solve it.