I want to remove the 1802 error from my T42 and have tried flashing this one as well as 2 others with similar changes I found elsewhere, and with 3 versions of phlash16.exe, using a freeDOS boot key. They all give the error: BIOS ROM file may be corrupt. (Extended checksum not zero) Continue anyway? (y/n) I have aborted each time, but is this a real error? The modified ROM files were all the same size and I expect from the descriptions that they had the same change, done by different people. I tried 2 downloads of SERG008's file. If this is a real error, anything else I should do? Thanks for your help.