How is this possible??

[devils3023]

Ok, so i downloaded and installed v1.8 and now ALL my ps3 are outputting dts sound!! Before the update my receiver (HK avr635) recognized my games as dolby digital but now it comes up as dts on every game!!! how is this possible since the games were only encoded w/ dolby digital sound? is this a glitch w/ the new firmware update? some other glitches i've noticed with v1.8 is that i have alot of trouble signing in to the psn as it keeps coming up with error messages. i know it's not my internet connection because my laptop is working fine. also, everytime i turn the ps3 on i have to keep resetting the full range hdmi output setting. it says it's set to full but you can clearly tell it's not and when switched to limited and back to full the blacks become much darker so it's obviously loosing the setting when switched off. anyone else experience these problems or have any idea as to why this is happening?? sorry for the long post and thanks for your input in advance!!!