Does anyone know of the differences between the Canon XTi and the T1i? I had a XTi prior and had purchased a remote shutter release for the 40D and 50D but was able to purchase a 2.5mm male-to-male cable with success to my Canon XTi. I sold the XTi a few months back and bought the T1i even farther back but I never used the remote on the T1i. Now, I need to but can't get the camera to recognize the remote. The remote and cable are both the same, so I'm assuming the way the T1i reads the signal input has changed. Does anyone have any suggestions as to how I can get this to work? I'd rather not spend the money for a new shutter release but if it comes down to the point I must, well, then I must.