I have a Samsung Galaxy 3 ([GT-i5801][1]) Android phone. Currently, my phone is not being detected by my PC. Initially, when I purchased this phone, I was developing applications and I was able to run the applications on my phone. I have purchased a new cable as I thought the data cable may have been damaged, but that did not solve the issue.

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

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

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