Motherboard installation problem

Hi, new user here, hope you all can help out with this one.

I'm trying to install an Asus P6T v2 into a Cooler Master 840 case (the big aluminum monster with the slide-out motherboard tray.) So far, I have the MB mounts installed and the I/O shield. However, when I drop the motherboard in and attempt to line it up with a) the mounts, and b) the holes in the I/O shield, the holes at the top are just about 1/4" (or less) out of line.

I'm able to apply some pressure to the MB to get it aligned, but it doesn't feel like that's what I should be doing. I've doublechecked the positions of the mounts, and checked that the MB fits properly without the I/O shield. The padding on that seems to be the one thing keeping the MB from sitting in there properly - is there any reason why I couldn't rip out the padding? In fact (just looked at it again), it's starting to fray at one end already...

Thanks, and apologies if this has been answered already - a quick search didn't find anything, which tells me that this question hasn't been asked before, or I shouldn't be using searches (and assembling computers!) late at night.

I wouldn't rip the padding off the I/O shield, after all - you shouldn't have to. Can you post some pics to help us out??

Oh, and to O/C Forums

Seems odd, you should be able to push that into the padding slightly and get it to line up.

Is the I/O shield pushed all the way into the case like it should be fully before you try installing the MOBO ? It should take a little bit of pressure to get it seated in the opening all the way.

I could never get the IO shield in when I had everything in my Rocketfish case. I messed with that thing for twenty minutes and it would not snap into place. I just gave up and left it out. I have an Antec Skeleton now which doesn't use an IO late.