Hello Teri Lee, are you by any chance using an old ball type mouse? They are prone to jumping around when they get dirty. They can be cleaned but at a cost of around $10 and up at Staples. I keep a few on hand. I've had 2 Microsoft intelipoint USB optical mice go bad on me in 4 years of use. One would work some of the time the other one became jumpy. My last 3 came from garage sales this summer for about $2 each. They work well<G> Cheers Mike the mod ******* REPLY SEPARATOR ********* On 24/09/2009 at 10:02 PM LiL OL Me wrote: Hummm ... this problem came out of nowhere and baffles me . I can be typing in an E-Mail when suddenly the courser jumps in the middle of another line that's already written . Or it jumps out of the message body completely . Or starts a new line out of the blue . Usually I can catch it and place it back at the end of the line being written ... but of course some obscene words are uttered . I am running Windows Vista Service Pack 2 on an Acer laptop . I have a Malware Bytes Anti Malware program installed as well as Spybot Search and Destroy and Windows Defender . My firewall and virus control is Trend Micro PCcillin . If anything I am overly protected almost to the point of over kill . Teri Lee --------------------------------------------------------------- Please remember to trim your replies (including this sentence and everything below it) and adjust the subject line as necessary. To subscribe, unsubscribe or modify your email settings: //www.freelists.org/webpage/pctechtalk OR To subscribe to the mailing list, send an email to pctechtalk-request@xxxxxxxxxxxxx with "subscribe" in the Subject. To unsubscribe send email to pctechtalk-request@xxxxxxxxxxxxx with "unsubscribe" in the Subject. To access our Archives: http://groups.yahoo.com/group/PCTechTalk/messages/ //www.freelists.org/archives/pctechtalk/ To contact only the PCTT Mod Squad, write to: pctechtalk-moderators@xxxxxxxxxxxxx To join our separate PCTableTalk off-topic group, send a blank email to: pctabletalk+subscribe@xxxxxxxxxxxxxxxx ---------------------------------------------------------------