Predicta Holiday Screen Warpage

[rickfray]

After I removed my 21" Predicta Holiday protective screen to clean it, I noticed I now can't get the tabs to match back up properly on the lower right side (facing the CRT). It appears to be warped somewhat. So the metal strap doesn't grab both tabs on about 4 ot 5 places and the brass strip that is supposed to cover the seams and metal strap doesn't cover the seam on the right side. Is this common and is there a way to maybe gently heat the screen with a heat gun, put some weight on it, then let it cool down to "stretch/press" it out a little. The cleaning & polishing really helped the clarity so I don't want to damage the screen if heating it fogs it up permanently or something like that. Any experience/solutions to this problem? Thanks

Rick