utorrent problem memory and processes windows 7

[urby]

I have this problem After nearly an hour about the PC is incredibly slow and this is the event log utorrent

[2010-03-20 20:01:28] *** Starting Diagnostic thread ***

[2010-03-20 20:01:28] IPv6 is installed

[2010-03-20 20:02:38] Reporting hang diagnostic information.

[2010-03-20 20:02:38] http://www.utorrent.com/report_problem.php?v=67193020&h=QBUzcN4rILUKGBgT&w=1BBC0106&p=hung&s=0&li=&wm=m:275:3210772:0:64366,m:275:3210772:0:61589,m:275:3210772:0:60575,m:275:3210772:0:59561,m:275:3210772:0:58547,m:275:3210772:0:57533,m:275:3210772:0:56519,m:275:3210772:0:55505,m:275:3210772:0:54491,m:275:3210772:0:53477,m:275:3210772:0:52463,m:275:3210772:0:51449,m:275:3210772:0:50435,m:275:3210772:0:49421,m:275:3210772:0:48407,m:275:3210772:0:47393,m:275:3210772:0:46379,m:275:3210772:0:45365,m:275:3210772:0:44351,m:275:3210772:0:43337

[2010-03-20 20:02:44] Hang reported successfully:

[2010-03-20 20:02:44] http://www.utorrent.com/report_problem.php?v=67193020&h=QBUzcN4rILUKGBgT&w=1BBC0106&p=hung&s=0&li=&wm=m:275:3210772:0:64366,m:275:3210772:0:61589,m:275:3210772:0:60575,m:275:3210772:0:59561,m:275:3210772:0:58547,m:275:3210772:0:57533,m:275:3210772:0:56519,m:275:3210772:0:55505,m:275:3210772:0:54491,m:275:3210772:0:53477,m:275:3210772:0:52463,m:275:3210772:0:51449,m:275:3210772:0:50435,m:275:3210772:0:49421,m:275:3210772:0:48407,m:275:3210772:0:47393,m:275:3210772:0:46379,m:275:3210772:0:45365,m:275:3210772:0:44351,m:275:3210772:0:43337

[2010-03-20 20:02:49] http://www.utorrent.com/report_problem.php?v=67193020&h=QBUzcN4rILUKGBgT&w=1BBC0106&p=unhung

[2010-03-20 20:02:49] Hang reported successfully:

[2010-03-20 20:02:49] http://www.utorrent.com/report_problem.php?v=67193020&h=QBUzcN4rILUKGBgT&w=1BBC0106&p=unhung

[2010-03-20 20:03:09] Reporting hang diagnostic information.

[2010-03-20 20:03:09] http://www.utorrent.com/report_problem.php?v=67193020&h=QBUzcN4rILUKGBgT&w=1BBC0106&p=hung&s=0&li=&wm=m:275:3210772:0:97080,132008:275:3:0:96970,132008:275:3:0:96846,132008:275:3:0:96736,132004:512:0:6619240:96721,132004:512:0:6619241:96705,132004:512:0:6553705:96690,132004:512:0:6553706:96674,132008:275:3:0:96612,132004:512:0:5963884:96565,132004:512:0:5963885:96549,132004:512:0:5963887:96534,132004:512:0:5963888:96534,132008:275:3:0:96502,132004:512:0:5963890:96487,132004:512:0:5963891:96471,132004:512:0:5963895:96456,132004:512:0:5963901:96440,132004:512:0:5963915:96424,132004:512:0:5963926:96424

[2010-03-20 20:03:09] Hang reported successfully:

[2010-03-20 20:03:09] http://www.utorrent.com/report_problem.php?v=67193020&h=QBUzcN4rILUKGBgT&w=1BBC0106&p=hung&s=0&li=&wm=m:275:3210772:0:97080,132008:275:3:0:96970,132008:275:3:0:96846,132008:275:3:0:96736,132004:512:0:6619240:96721,132004:512:0:6619241:96705,132004:512:0:6553705:96690,132004:512:0:6553706:96674,132008:275:3:0:96612,132004:512:0:5963884:96565,132004:512:0:5963885:96549,132004:512:0:5963887:96534,132004:512:0:5963888:96534,132008:275:3:0:96502,132004:512:0:5963890:96487,132004:512:0:5963891:96471,132004:512:0:5963895:96456,132004:512:0:5963901:96440,132004:512:0:5963915:96424,132004:512:0:5963926:96424

[2010-03-20 20:03:39] http://www.utorrent.com/report_problem.php?v=67193020&h=QBUzcN4rILUKGBgT&w=1BBC0106&p=unhung

[2010-03-20 20:03:39] Hang reported successfully:

[2010-03-20 20:03:39] http://www.utorrent.com/report_problem.php?v=67193020&h=QBUzcN4rILUKGBgT&w=1BBC0106&p=unhung

What should I do to restore efficient utorrent

thanks