help... I can't shut down my pc...

hi, i m new here.
i wrote a email to sales@comodo.com
they told me to come here.
am i in the right place?
i m not use with bbs and forum since i dont go online offen.

i download the comodo antivirus 2.0 beta yesterday,
i in stall it and have, my full system scan.
it was very nice, i kind of like it.

BUT!!
i when i wanted to shut down the pc,
it could not be shut down.
it restart back by itself after i shut down it.
it gv me a feeling that the shut down and restart is the same…
i immediately turn off the power cable after it turn off and between restart again.
the next time i open (few hours later)
the windows say my pc just recover from serious damage
(or something like that)

the only software i install on that day is comodo antivirus 2.0 beta.
should i uninstal it or what help!!!

ps. i m using windos xp
P dual core 3.0
1G RAM
i m a designer student
i got a lot of assignment!!
i cant lose my assignment!!!
HELP!!!
i need a good antivirus!!

Greetings!

That’s because you powered off the computer completely without shuttting it down properly.

Are you using any other real-time security softwares together with CAVS?
Also, you should try re-installing CAVS and see if it helps.

I recommend Avira AntiVir, it’s free and has very good detection rates.

Cheers,
Ragwing

it IS Comodo AntiVirus 2.0 beta…
i uninstall the Comodo AntiVirus 2.0 beta and i can finally shut down my pc.
but the error of saying my pc recovered from serious error is still on.
(but once. i shut down and startback manually for 3 times.)
i am very sorry that i uninstall comodo.

i m not using other real-time security softwares together with Comodo AntiVirus 2.0 beta
i only have Comodo AntiVirus 2.0.
the main reason i try Comodo AntiVirus 2.0 beta is AVG free fail me…
i will try on antivir…
thx

ps. is CAVS really Comodo AntiVirus 2.0 beta?
i read from here saying CAVS stands for Comodo Antiviruspyware …
Spyware??? or antivirus?
which is which?
i download is this one,