Morning SS,
Try contacting Polar to see what they say, I saw from the other thread that it had crashed your system.
Not sure about WildWill's commment about ME not being supported now, it is still active within there support sites (win98 is due to have its support withdrawn this year or early next). They do appear to be pushing for people to upgrade to XP however.
Before re-installing the polar SW did you check that you had all the critical windows ME updates applied?