Question Motherboard barely touching case at a corner

[Snickerdoodles]

Recently I installed some new components into my case, motherbaord included. My old motherboard was marked as an mATX, but it turned out to be some odd dimension between mATX and miniITX. Either way, according to what it as officially branded as, I went for an mATX motherboard when I was buying a new one, since the case seemed to be made for one. It did fit, but tightly; I actually had to leave out one standoff to be able to place it properly, as I had to drop it in the case ever so slightly diagonally to first fit the ports through the I/O panel and then place it on the standoffs, but the top right standoff was normally always in the way for this. Either way, the motherboard is still off the surface of the case because of the rest of them, but has a very small connection to the case's DVD bay. I was wondering if there's some way to break contact between these? Would a tiny strip of heat resistant electrical tape do the trick?

Picture of contact (quality poor I know, but clear enough)

 

[alexoiu]

I'd rather buy a new case.