[22/01/2013 AM Delays on Northern Suburban line

[Rashers]

Arrived this morning at my local station along the Northern suburban line, and to my surprise, no delays due to frozen points.
No announcements from CTC, no announcements from local station staff, nothing on LED displays, and train arrived on time. No announcements from driver (for the entire journey). 8am Drogheda to Bray.
However, once we got to Howth Junction, we crawled all the way to Connolly. Arrived in there 15 mins late. No announcements in Connolly either.
So am I right to assume frozen points? If so where? I thought there was significant investment to prevent this...just curious.
Delays continued till after 11am
Examples of estimated delays into Bray (per Realtime information on IE website):
E104 Howth to Greystones = 12 mins late
P604 Drogheda to Bray = 26 mins late (I think this was about 18 mins late leaving?)
P605 Newry to Bray = 11 mins late
E205 Howth to Bray = 8 mins late
P652 Maynooth to Bray = 15 mins late
E238 Malahide to Bray = 15 mins late
P606 Drogheda to Bray = 11 mins late
E105 Howth to Greystones = 15 mins late
etc. etc.