Linuxcnc Disapeared

linuxcnc 2.7.0
Further to my previous post, I just restarted the computer and there is now no sign of the Linuxcnc shortcut, nothing to start it in the applications/cnc drop-downs. the other linuxcnc stuff is there.
went to do an edit on the existing ini or whatever file and it 's not there.
is the a file that i can hard load onto the drive so that i don't have to use a disc or redo the setup every time i run it.?????
this has not been a great intro to linux.,
HELP!!!!!!!!!! please
Doug

BigJohnT and Andypugh
thanks for thew reply

(How did you install LinuxCNC?)
from disk created from "linuxcnc-2.7. wheezy

(Does LinuxCNC try to start if you type "LinuxCNC" in a terminal window?)
Yes, but it takes me to a "configuration selector page....my previously saved config file does not appear here....when i select a cofig the program starts.

It appears that the shortcut is being deleted when i exit linux.

I cannot start linux without the dvd in place, surely there is a way to hard mount linuxcnc onto the hard drive, i just don't know how.....
The version i have was listed as 2.7.3 but is in fact 2.7.0 .....where do i get the 2.7.3 version please.

Doug

Andy/JT
OK...now can boot without a disc....THANK YOU !!!
also can now login...as with many people got confused with what login was asking for ...now sorted...also have now been presented with 75 updates including the one for linuxcnc..now downloading/installing them all.
havn't got any further at this stage
being a nube to the forum i have posted 2 questions that for ease i will now only be acting on one...please see
"TOPIC: Linuxcnc 2.7.? Wheezy loads but wont drive"
thanks for your help
hopefully with the updates i will be able to continue.
Doug