[VocaLizard]

Since the update from 1.29 to 1.30, I have been having repeated problems with calibre. At first, I thought it was because I had changed one of my libraries to a name that included commas - my husband mentioned that it might be a problem since Python uses commas as an integral part of its coding. Indeed, once I changed that, I was able to get 1.30 working. But then it stopped again. Then, we figured that it was maybe because I had the 32-bit version installed on my 64-bit system. I installed the 64-bit version, it worked, great! In each of these cases where it "worked," I mean, it started up once. But then it would get hung up. And I'd have to force it closed (after it would stay hung up for over 5 minutes without doing anything). And I wouldn't be able to open it again.

I've tried uninstalling it, then reinstalling. No beans. Then uninstalling, running Ccleaner, reinstalling. No luck. Uninstalling, running Ccleaner, Norton, rebooting, and reinstalling. Still no luck. What happens, is when I start it up, it shows in Processes that it's running, but under Applications, it's not even there. And where I'm supposed to see a splash screen of books as it's loading, with a clear background, I see the books, but a black square as a background. I've let it sit for over 10 minutes, trying to load, but nothing works. I've tried doing a system restore, as far back as I've been able to do (I can only seem to go back a couple of days, at this point), and that doesn't seem to fix it, either.

I'm running Windows 7 Pro, 64-bit. I was upgrading from calibre 1.29, which worked with no problems (and I upgrade calibre constantly - I've never had problems before), and the only plugins I use are Alf's DeDRM tools, to back up my collection.

I've tried browsing these forums to find anyone with a similar issue, and I will continue to do so, but I don't see anything like this.

Thank you for any help!