Sony Vaio Problem - Advice?

I purchased this computer in June from Comet & have several issues of the screen flashing several times when the desktop came on & shutdown, where the only way to overcome them is totally reload the system, 3 times. The latest issue was the screen totally freezing when accessing a web site. This is rather annoying as I pay a monthly subscription to use a teaching site. At the point of this happenning I contacted Sony to help with the issue which took them over a week & a half & three attempts, 4 days between attempt 1 & 2 to resolve it.
At the same time I contacted Comet informing them of the issues & that I no longer have faith in the product as I don't know what it will do next & the fact I bought it to use the internet & couldn't do so. It also takes considerable time reloading everything back on, at the moment I haven't loaded some programs becasue I don't want to do it all again. The bottom line to Comet, was that I wanted to exchange this for an exact same model.
After several emails (which I had to do remotely) they have asked me to call a service number so that they can see if it's a hardware problem & if it is repair the computer.
My argument will be that if they have my computer I will have to delete & then reload my personal files plus I will not be able to access my subscribed web site causing inconvenience. I suppose they could offer an exact replacement while the repair is undertaken but that would still mean loading & reloading my files for a short period, more inconvenience. Why shouldn't they just replace it?
So where do I stand, lack of faith, not fit for purpose, poor quality?
Any views of where I legally stand.

Many thanks,

Sandyback

Thank you for the prompt reply Tony. One of the other things that I also told Comet, was that I don't feel I should have to keep asking Sony to fix a problem, to me it makes me a home repair man & not a user which is why I bought the machine, I expect it to work.
Thanks again,

Sandyback

Tony said:

Hi,

From what you have said it sounds like this is causing significant inconvenience and you have given them reasonalbe opportunity to fix the problem. You should be able to get a replacement or a refund under the Sale of Goods Act, especailly because you have only had it a few months.

HTH

Tony

BTW It is worth investing in somthing like Norton Ghost to make reloading software easier

Click to expand...

Interesting update - I rang the number given by Comet to see what they said about a possible repair, the person on the other end seemed to have an American accent not English so I asked if he worked for Comet & he said no, Sony Viao Helpline. His job was to try & resolve issues & organise repairs. Nothing to do with Comet.
So to me it looks like Comet have passed the book & infringed the Sale of Goods Act.
So now I will go back to Comet & demand a replacement.

Sandyback

Does anyone else have problems with Comet?
As much as I say to them nicely that it is they who have to resolve the problem, they always come back & tell me to call Sony helpline. It's wearing a bit thin now & legal action may be the only solution.
I have now asked them to explain why I should deal with manufacturer & not the trader, could be intersting replay.