I have a Samsung Galaxy 3 ([GT-i5801][1]) Android enabled phone. Currently, my phone is not being detecting by my PC. Initially, when I purchased this phone, at that time I was developing applications and successful to run the applications on my phone. But nowadays, the phone is not being detecting by my PC. I have also purchased a new cable as I thought the data cable may have been damaged too.

What can be the possible solutions or what do I need to check for in order for connecting my Samsung Galaxy 3 to my PC by using a data/USB cable?

I have Windows XP installed on my [Dell Inspiron][2] laptop.

Update:
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Please check the answer of **`JRC`** at below, the same problem he (and me also) is also getting.

  [1]: http://en.wikipedia.org/wiki/Samsung_i5800
  [2]: http://en.wikipedia.org/wiki/Dell_Inspiron