I have a Canon Ixus 40 and the screen does not work now can it be fixed for a reasonable cost.

Cost of repair would be probably more than the camera is now worth. But is the screen just showing black? An issue with the tiny SD10/20/30/40... cameras (IXUS versions also) was that sometimes a little corrosion could form on the A/V plug switch that would in effect simulate the plug being inserted, thus turning off the screen. If you have your television video plug available, try inserting and removing the plug in its A/V port a few times. If this is the problem with your camera, sometimes this helps remove that corrosion, setting things right again.

Please try to see through viewfinder ,if the viewfinder also getting blank image,the optical unit of your camera become complaint. give it to service centre it may cost 40-50$

Could be several reasons, but just make sure the battery door is fully closed as there is a switch on the door that musr be closed. Other than taht, camera will need to be serviced.

Use a card reader to download to a folder you create on your desktop.

Your camera is not compatible with SDHC type cards. No 4gb cards for you. It looks like 2gb (non SDHC) cards are the biggest you can use.

No you fix or probably camera shop fix either
These little item are considered 'consumable'

The cost of underaking any work assuming part are available is as much as a new[more high specified] replacement

**** it

Here are some simple things to try first for a camera that won't power on. They won't work for every case, but they're worth a try:

http://camerarepair.blogspot.com/2007/11/simple-fix-for-dead-cameras-that-wont.html

pretty easy to replace the screen, i suggest buy SD300 from ebay that has lens problem, but it is known for sure that screen is working, you might find one for $20-30, also look for SD200 you might find it cheaper and it uses the same screen as your SD300

Sounds like a cracked LCD. That happened to my S400, and it was pretty evident the glass screen had broken. I bought a new one and installed it myself at a cost of under $40. Having a shop do the repair will cost quite a bit more. If you think this is the problem, do a Google search on "canon s400 lcd screen repair" and you'll find some resources to walk you through the ordering and replacement process.