SUBSTITUTE Mark Turner saved Lynn from an embarrassing home defeat with a late equaliser on Tuesday night.
But the result left manager Gary Mills turning his thoughts to his defence and goalkeeper after gifting three goals all from similar corners.
"It's a massive worry," he commented. "My goalkeeper's had a bad night and he knows that. We've got to expect to win games after scoring three goals.
"The first half was not great but we were two goals up. The second half was awful and it's up to me to sort it out quickly." he continued.
Martini endured a nightmare evening between the posts.
His opening gaffe came after only two minutes when he missed Tony Spearing's back pass, but, to his relief, saw the ball trickle wide of his goal.
The resultant corner saw Martini miss the cross, but Mills was on hand to head Darren Bogan's effort off the line.
Martini's opposite number Ben Nower looked equally uncomfortable when he missed a cross which sparked a goalmouth melee with Jon Palmer having a shot blocked and Emeka Nwadike seeing his follow-up bundled off the line.
The Linnets opener came on the half-hour when Nwadike flicked on a near post corner which hit Grantham caretaker manager Matt Carmichael and crept over the line.
Lynn increased the lead four minutes before the break when Lee Wilson rifled home after Grantham had only half cleared Dave Puttnam's corner.
Grantham reduced the arrears a minute later when Bogan's corner was missed by everyone and Tim Wilkes nodded home.
Grantham looked the more threatening side after the break and got a deserved equaliser on 68 minutes when substitute Darren Gwyther headed home from another corner.
Martini's miserable night was completed by the Gingerbreads third when he missed Bogan's corner which sailed into the net.
Former Linnet Wayne Halcro, who moved to Grantham in the deal that brought Emeka Nwadike to the Walks, then hit the post and Martini redeemed himself somewhat with a fine block when Ranshaw seemed certain to score.
Just when it seemed Grantham would record their first victory of the season, Turner rose in stoppage time to head home Puttnam's cross.
"It was not the result or the performance I was looking for," added Mills. "It was very disappointing -- especially when you are two goals up."
Lynn: Martini, Dakin, Spearing, Fuff, Clark (Turner 76), Mills, Nwadike, Goss (Marsden 85), Palmer (McGinty 71), Wilson, Puttnam.
Grantham: Nower, Stahlberger, Neil, Logan (Gwyther 64), Carmichael, Carvell, White, Halcro, Ranshaw, Wilkes, Bogan. Subs (not used) Morris, Rogers.