Can't use/find CanoScan Lide 200 on Compaq laptop running Windows 7

Hello,
I am not a computer expert so please bear with me.

My old (first) laptop was a Compaq Presario R4000-S/N: CND 517 08P6 running on XP Professional SP3. I loved it to bits. I used a Canoscan Lide 25 due to lack of space and though a bit slow, it worked perfectly.

My new laptop is a Compaq Presario CQ61 model: CQ61-330DB S/N: CNF 938 040D running on Windows 7 Home Premium 64 bit. I also bought a Canoscan Lide 200.

After installing the driver (ScanGear) it can not be found . The error message is: The scanner driver supported by this software is not installed. Though the removal programme of this driver is installed. When installing installed, the pop up screen states that the driver is being installed in C:\Program Files\Canon BJ\..... but I can not find any Canon file in the Program Files. When uninstalled, the pop up screen shows the driver being actually deleted . I think that either Windows 7 or the Compaq configuration does not detect/recognise this installation?

- I downloaded the most recent 64-bits driver from the Canon site but no succes.
- Searched the net ( Major Geeks first of course also no succes. I found the following pages http://www.windowslivehelp.com/thre...ce318a55#577dbe64-0638-4c86-8309-c293ce318a55 and http://www.geckoandfly.com/2010/04/...rinter-driver-for-microsoft-windows-7-64-bit/ but they are only partly relevant and of no help. I also tried using Windows Help but no succes.
- I contacted the shop where I bought both my laptop and scanner. This is a one-man business he helped me in the past many times so I buy all my stuff there. He did not know, but is also investigating.
- I contacted Compaq and Canon but not yet a solution received. They did confirm receiving my mail though.

Now get this: I installed the Can..200 driver on my old laptop, this did not work either. Then I deleted the Can..200 driver, installed the Can..25 driver first followed by the Can..200 driver and this works!!
I tried this on my new laptop, downloaded first the most recent 64-bit Can..25 driver of course, installed it, followed by the Can..200 driver, but this did not work. (Otherwise you would not be reading this:cry

I can temporary keep on working on my new laptop and using my old laptop for scanning purposes (which I do all the time). But first: because of the lack of space it is tedious and second: I bought the new laptop because the screen of my old one goes regulary black and fear that one of these days it will remaine black.

I would be very grateful for any advise or information in this matter.

Many thanks and regards,
Merxem