issues with thermal recipt printer drivers

so everytime i start microsoft point of sale i get a message that say: ther is a problem with this device witch i identified as the thermal recipt printer, check the cables and make sure that OPOS software is installed properly. then goes on asking if i whant to run the program withouth such device or not. thing is if i start the program with the supplied cd rom containing the driver inside the cd rom drawer the message would not pop up and averything is fine and happy. kind of crazy, i tried everything i could think, all drivers are upgraded and installed succesfully. system is HP PoS bundle RP5000 w/ windows embedded for point of service, retail software is microsoft Point of sale. i love this product ans wish to get this issue solved so i wont have to run the system with that disc in the cd rom bay at all time. any help is grately uppreciate. Thank you Thank you Thank you