If your warranty is up, you have two options, you can call a repair tech, or open the unit and inspect the connector. If you want to play the safe card, call the tech first, as they may have a replacement HDMI connector available and cheap.
If they do not, or they say the repair will cost much more than you are willing to spend, check the connection yourself.

It should be a pretty standard connection, so you should be able to see if the input is loose. If the frame of the connector is stretched top-bottom, apply slight pressure to the top of the input (while you have the board out of the chassis. This will make the HDMI cable fit more snug. This technique works on USB ports also.

If your connection is bad on the center shaft, it may be corrected by "closing the gap" a little bit.

If you can feel the center is loose on its own, your best bet is to order the part from a vendor and solder it yourself, if you feel comfortable doing this.

Hope that helps.
-StreetChariot thanks for the advice i really hope it won't cost too much to fix, but in the mean time i have 2 compnent inputs on the tv. One which is connected to the HD box and i can still get 1080i hd but what now with my upconvert dvd player do they make some type of (hdmi to component) cable i still want to able to watch dvds that have been upcoverted to 1080i, or am i SOL without the hdmi input on the tv