Flashing Red Light

[Flakes]

Hi all,

current new owner of a Ford Focus 1.6 Zetec MK2 just looking for some advice, had this car just over a month now and noticed a few things,

1. this morning the car failed to start the first time, but started the second, however once started the red immobiliser light(between fuel and temp gauge) was flashing rapidly, could this indicate a serious problem? the manual and google have revealed nothing, i suspect its just warning me that a fault occured on first start up.

2. MPG, after looking around most seem to get around 35-40MPG from the 1.6 VVTI engine at the moment in temps hovering around 0 Celsius with a mix of about 60/40 (motorway/town) driving i am recieving 32MPG just wanted to know whether this was within average MPG? (i drive between 700-1000 miles a month)