PDQ Back writes to tell us about an email Microsoft sent to former customers of MSN Music today. The company said it would be turning off the DRM servers used to authorize playback of music purchased from the now-defunct MSN Music store. "'As of August 31, 2008, we will no longer be able to support the retrieval of license keys for the songs you purchased from MSN Music or the authorization of additional computers,' reads the e-mail. This doesn't just apply to the five different computers that PlaysForSure allows users to authorize, it also applies to operating systems on the same machine (users need to reauthorize a machine after they upgrade from Windows XP to Windows Vista, for example). Once September rolls around, users are committed to whatever five machines they may have authorized — along with whatever OS they are running."

tibbar66 writes with news of a serious multiplication bug in Excel 2007, which has been reported to the company. The example that first came to light is =850*77.1 — which gives a result of 100,000 instead of the correct 65,535. It seems that any formula that should evaluate to 65,535 will act strangely. One poster in the forum noted these behaviors: "Suppose the formula is in A1. =A1+1 returns 100,001, which appears to show the formula is in fact 100,000... =A1*2 returns 131,070, as if A1 had 65,535 (which it should have been). =A1*1 keeps it at 100,000. =A1-1 returns 65,534. =A1/1 is still 100,000. =A1/2 returns 32767.5."