Microsoft Corp’s Windows 3.1 is winning rave reviews from those that have kicked the tyres on it – but it is intended only as an upgrade to 3.0: 3.0 has facilities to enable users to upgrade from 2.1 that are absent in 3.1, and if you’ve got any old 2.1 files still lying around, it can appear that breakthrough reminiscent of the end of Mel Brooks’ Blazing Saddles has occurred, and the next door team at Microsoft busy working on Russian language versions of the company’s products get in on the act – the printer starts unpredictably coming out with bursts of Cyrillic text.