Thanks but I already do that, and it is very inconvenient because I take a few photo's (at home) and I directly look at them.
Well, you do say that you have to reinstall the drivers everytime you freshly connect the camera to the PC, so that's inconvenient as well.
I know nothing about Canon, but I use the standard Nikon software for my D300 (not P300 like you have). I've got the latest Nikon software installed, from
Nikon's software download site. No problem connecting the camera directly to my Win7 x64 PC and transferring pictures.
I don't know about the P300, but with the D300 you configure the camera to communicate over the USB connection in either of two ways: MTP/PTP, or MSC.
The MSC approach assigns a drive letter to the "removable" camera storage, and also requires that you "safely remove hardware" before you disconnect the USB cable. You can use Windows Explorer and 100% of normal programs to access the contents of the flash card while inside the camera, because a standard Windows drive letter has been assigned.
In contrast, the PTP/MTP approach requires special drivers or software, and typically ONLY Windows Explorer or camera-provided software can access the contents of the flash card inside the camera. This is because NO Windows drive letter is assigned (although the camera shows up in Explorer as a removable device with a name), so only software specifically capable of communicating through PTP/MTP can be used.
Does the P300 have a similar configuration option? Have you tried both methods?