I recently updated the 2 display roms in my Maverick. Unfortunately, now I get images and text on the DMD freezing up during a game and sometimes in attract mode also.
I got the roms from Pinballrom.com They sent out another 2 when I told them about this but the second set did the same thing. Do the larger displays need a different type of rom? I read something about 120 nanosecond for these rather than 150ns.
When I put the original roms back in the display works perfectly. Anyone had this problem?

I bought the cpu, 3 sound roms and 2 display roms as a set. The display roms say 401, the cpu says 404 & the sound ones just have Pinballrom.com on 'em with U7, U17 & U21.

Yes, he's a good guy and tried to help me out.

He indicated that going through customs might've damaged the roms...who knows.
It's interesting that the display roms for Maverick need to be a faster speed.

The display roms have this written on them;
M27C4001
-10FI
58SHZ
103.5L (could be 1035L...my eyes aren't the best)
Singapore
ST(brand)
20141214_152715.jpg

Yep, this was the issue. The two sets of roms I bought were labelled incorrectly and the latest set sent out by Dave work perfectly. All this time I thought there was something wrong with my machine
Bit of bad luck getting two sets of roms that wouldn't work, hey?