We had this problem last winter as well. Our mechanic told us to manually raise the top. We did so, and let it sit overnight, also with the computer unplugged. Went back in the morning, hooked it back up, lowered the top, all was well. Raised it, all was well once again!

__________________
-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.