Number: A1TH090690U597 Subject: IBM PS/2 Model 70 Portable Problems Date: January 30, 1991 - - - - - - - - - - - - - - - - - - - - - - - - - - PROBLEM: The are various network problems with a IBM PS/2 Model P (portable) 70 and IBM DOS 4.0. SOLUTION: As strange as this may sound, the P70 is not really IBM compatible. In this particular situation, backing off to DOS 3.3 helped tremendously although not completely. (X) This information was verified by the vendor.