hello, i am having some problems with my viper 5900 alarm, when i press the lock button on the transmitter it beeps once showing it locked all doors and shows on the transmitter it has been armed (normal things that a good working alarm does). ..but after a couple of secs later it beeps again and it shows the hood blinking on the transmitter screen. Before i had any problems, if i would disarm the alarm, open any doors and close them again, the led light would start blinking and after 10 to 15 secs the alarm would arm by itself and all doors would lock...now it doesnt do that, when i try to do the same steps, the led doesnt blink and i disarm, open and close door and it doesnt arm it self after those 10 to 15 seconds. any help would be appreciated. thanks in advance