Glo "Out Of Print" book case issue

Does anyone else have one of the "Out of Print" kobo glo covers (the ones with cover art from classic books)? I bought "A Clockwork Orange" cover. It's gorgeous and I am very fond of it. One issue, though. The touchscreen stopped working when I clipped the reader in place.
Is it an issue with the reader? I just got it but I've read half a book with no issues. I think the kobo is being bent too far back by the restraining clips in the corners but I don't know for sure.
I took the kobo out of the case and it works again but my concern remains. Is there something I can do to make the case fit properly? Is this a known issue? Would a new case yield better results?

Thanks,

Liam